UVDB
DISAB Centurion: High Performance
Wet/Dry Materials Handling Unit
Applications:
•
Sludge and primary tank cleaning
•
Detention tank cleaning
•
Grit detritor cleaning
•
Deep wet well cleaning
•
Activated sludge lane cleaning
•
Anaerobic digestion plant cleaning
•
Large culvert cleaning
DISAB Centurion:
•
High performance vacuum tanker that will
vacuum dry or wet material
•
The DISAB can vacuum material from
200m away and from a tank that is up
to 100m deep
•
High tip directly into a skip
•
Dry material can be placed in bulk bags
using the bagging facility at the rear
•
A Disab can empty a tank containing grit,
screenings and sludge far quicker than a
conventional JetVac.
The D:MAX is a mobile screening & classification system which efficiently removes grit, screenings and other troublesome solids from your waste stream. A specialist plant that is used in tank cleaning projects to screen and dewater material from sludge holding tanks, primary tanks, digesters, storm detention tanks, pumping stations and culverts.
It is mounted on a low loader trailer and transported to site by a tractor unit for temporary deployment.
The mobile screening and dewatering process:
1. Remove wet material from the tank using the DISAB. 2. The DISAB is connected to the mobile screening plant and
transfers material directly into the mobile screening plant. 3. The material is screened and the dry material is separated
into grit and screenings which is deposited into two separate skips.
4. The screened effluent is pumped into the site drainage or site process.
The mobile screening unit will:
• Reduce the volume of the waste for offsite disposal by up to 90%
• Screen and dewater the waste onsite
Mobile Screening and Dewatering Plant
How does it work?
First Stage
The wet material is delivered to the Mobile Screening and Dewatering Plant and fed directly onto the primary course vibrating screen where the screenings are removed. This dry material is discharged into a skip at the end of the primary screen.
Second Stage
The wet material passes through the course screen drops into a hopper and is pumped from the hopper to a hydro-cyclone. The grit size particles are separated from the liquid by centrifugal force and dropped onto the final vibrating screen for final dewatering and are discharged into a skip at the end of the final screen.
Third Stage
The screened wastewater is pumped from the hydro-cyclone into the customer’s site drainage or site process.
The operation is continuous and the pumps and screens are electrically driven by a 200 KVA generator that is fitted to the front of the low loader chassis.
T
| 01228 672300
or01274 583696 E
| [email protected]
W| www.andidrain.co.uk
Dry material from Mobile Screening and Dewatering Plant deposited into skip.
Kaiser Whale sewer cleaning recycler.
Kaiser Whale:
Sewer Cleaning Water Recycler
Applications:
•
Sewer Cleaning
•
Culvert Cleaning
•
Highway Drainage Cleaning
•
Root Cutting
•
Large Diameter Pipe Cleaning
Kaiser Whale:
•
Jets at 410 Litres Per Minute up to 200 Bar
and 200m of jetting hose
•
Vacuums to depths of around 20m deep
•
Water Reuse through on board recycling
•
The recycler can work continuously as the
water removed by the vacuum hose from
the sewer is filtered in the recycler’s debris
tank and pumped back through the jetting
hose. This is compared to a JetVac that
has to spend many hours a day filling up
it’s jetting tank with mains water
The problem
The highway drains were overflowing during periods of significant rainfall, causing localised flooding and the public footpaths and verges that the highway drains ran underneath were due to be replaced.
The solution
A length of 3400m of mainly 150mm diameter highway carrier drain and associated road gullies and lateral connections were cleaned and surveyed using an Andidrain sewer cleaning recycler and CCTV Unit. The CCTV surveys identified some lengths of the carrier drain as being in poor structural condition and some lengths having root ingress.
Root masses were cut and removed using a warthog and flail, followed by a complete clean of the system. To prevent root regrowth and further deterioration in the condition of the pipe, defective sections were lined using our UV (Ultra Violet) Pipe Lining rig, with lateral connections reopened using our remotely controlled robotic cutters.
Pipe Cleaning and Surveying
Andidrain Kaiser Whale Sewer Cleaning Recycler.
Deploying the Crawler camera.
T
| 01228 672300
or01274 583696 E
| [email protected]
W| www.andidrain.co.uk
Case Study
Pipe survey controller.
“Over the last 5 years I have found Andidrain to
be a reliable and flexible and easy to do
business with. They have adapted to the ever
changing demands in the industry and provide
a quality service whilst always looking for
improvements and efficiencies.”
Tim Shepherd, Programme Development Manager - Kier’s Highways Business
The problem
The pumps in a large 16m wide and 20m deep inlet pumping station at a wastewater treatment works were frequently blocking due to the volume of silt and screenings in the wet well.
The solution
The thick layer of sludge, screenings and silt in the wet well was first removed using a DISAB vacuum tanker working from the top only.
As the levels of sludge, screenings and silt in the tank decreased a safe working area was cleared in the tank. Once the tank was deemed to be safe to enter after gas testing, two confined space trained operators were lowered into the wet well using a man riding basket and mobile crane. A further mobile crane and man riding basket was on standby at all times.
When the operators were safely on the base of the well, the remaining material was broken up using the JetVac’s jetting hose and removed using the DISAB’s vacuum hose.
The material removed from the well was screened using the mobile Screening and Dewatering Plant and the screened water was pumped back into the site drainage. The silt and debris was deposited into an eight yard builders skip for disposal offsite using our skip vehicle.
Tank Cleaning
Case Study
DISAB removing silt, sludge and screenings from the 20m deep wet well.
“I have worked with Andidrain on the
Industrial Cleaning contract for 4 years.
I have always found Andidrain to be
professional and reliable and their
team have an extensive knowledge of
industrial services work in the water
industry. They are able to undertake
large complex tank cleaning projects
and approach any work with a can
do attitude.”
Sean Deacon, Vactor Controller, Environmental Services - United Utilities Mobile Screening and Dewatering Plant and JetVac.
The problem
The mixers in a customer’s Anaerobic Digester had stopped working due to the volume of solids that had built up in the tank and also the customer needed to repair several small holes in the tank. To repair the mixers and the holes in the tank the tank needed to be emptied and cleaned.
The solution
The material in the Anaerobic Digester was broken up using a fire hose connected to a wash out onsite and then vacuumed out of the tank using one of our DISAB Centurions.
The wet material was then blown from the Disab into our mobile screening and dewatering plant which processed the material and deposited the dry material into a commercial bin at the rear of our mobile
screening and dewatering plant. The customer removed the commercial bin using a forklift and tipped the dry material into their dry waste bays onsite for disposal. Our mobile screening and dewatering plant pumped the screened wastewater back into the customer’s process. Once the tank had been emptied it was given a final clean using the fire hose connected to a wash out.
Completion of the Works
In a period of ten days we removed, screened and dewatered 900 tons of material from the Anaerobic Digester to enable the customer to repair the AD Plant.
Anaerobic Digester Cleaning
Mobile Screening and Dewatering Plant discharging dry material into the commercial bin at the rear of the plant.
Dry material deposited into the customers dry waste bays onsite.
T
| 01228 672300
or01274 583696 E
| [email protected]
W| www.andidrain.co.uk
Case Study
UV (Ultra Violet) Pipe Lining
UV Pipe Lining:
•
Based on the ProKasro Ultra Violet (UV)
cured in place pipe technology, the Andidrain
Lining Division are able to carry out
trenchless pipe rehabilitation in a fraction of
the time of conventional pipe lining methods
using water or steam
•
The pipe liner is made of fibre glass and is
impregnated in the factory with a liquid resin
•
The pipe liner is installed by winching the
liner into place using a downstream and
upstream manhole. Once in place the liner is
inflated by air and a UV light train is pulled at
a pre-determined speed through the lining
which cures the liner in place
•
Lateral connections are logged during the
pre-lining CCTV survey and post lining are
reopened using our robotic cutter.
UV Pipe Lining vehicle
Brick sewer prior to lining Brick sewer post lining
Applications:
•
Pipes diameters from 150mm to over
1600mm can be lined
•
The full pipe length can be lined manhole
to manhole or a small section of the pipe
length can be lined (patch lining)
•
Structural liner to prevent further
deterioration of the pipe
•
To prevent root regrowth after root cutting
•
Pipe lining to stop ground water infiltration
or exfiltration (leaking pipe)
•
To improve flow characteristics to prevent
operational problems such as repeat
blockages
Drainage Asset Surveys
T
| 01228 672300
or01274 583696 E
| [email protected]
W| www.andidrain.co.uk
CCTV Vehicle
Drainage Asset Surveys:
•
A large fleet of CCTV vehicles equipped
with Pearpoint mainline pan, tilt and
zoom cameras
•
High quality surveys, professionally
processed presented in a variety of formats
to suit client needs. Wincan 7 and 8 /
HADDMS / AutoCAD
•
Dedicated team of CCTV report writers and
AutoCAD technicians
•
Asset Surveys including Manhole and
Pipe Surveys
•
Drainage Connectivity Surveys
•
Drainage Mapping
•
HADDMS Surveys (Highways Agency
Drainage Data Management System)
Applications:
•
75mm to 2000mm pipes/Culverts
•
In pipes and culverts with high water
levels the CCTV equipment is installed
on a raft system.
•
EX-rated CCTV unit used in potentially
explosive environments
•
Culverted watercourse inspections using
our steerable CCTV cameras
CCTV Vehicle
AutoCAD drawing of highway drainage produced from onsite asset surveys, GPS readings, annotated drainage plans and CCTV surveys
